Asilidae - robber fly
Northern Sierra Nevada, California, USA

photograph © Alex Wild 2004

Robber flies are agile visual predators, catching their meals on the wing.  Here a small robber fly perches on an oak leaf to consume a midge it has caught.

USA, CA, Nevada Co.: Sagehen Creek Field Station.
23.vii.2004, 39º26'N 120º14'W, 1920m
Jeffrey Pine forest.

This image is copyrighted by the photographer and cannot be used without permission. To obtain permission to use this image, please email Alex Wild. (alwild (at)  Most of the photographs on are reduced from their original size and compressed for more efficient web transmission.  In some cases, higher quality versions are available.

This image was captured with a Canon EOS D60, with a Canon 65/2.8 MPE 1-5x Macro lens.